Conveyer fitting



Jan. 2/7, 1925- 1,524,092

J. s. s. FuLToN convma FITTING Y Filed oct. s1. 1921 3 ysheetssheet 1@756/55 65,' n (L7M l/juZZOm,

J. s. s, FULTON CONVEYER FITTING 2 Fild 061.. 31. 1921 3 Sheets-Sheet 2,iff/565565 l Patented Jan. 27, 1925.

, STATES 1,524,092 PATENT QFFICE.

JOHN s. s. FULTON, or CHICAGO, ILLINOIS, AssICNoR ro UNITED CoNvnYoiaCOR- PORATION, or CHICAGO, ILLINOIS, a CORPORATION or ILLINOIS.

CONVEYER FITTING.

Application filed rlictoloer 31, 1921. Serial No. 511,887.

To all wim/my it may concern.:

Be it known that I, JOHN S. S. FULTON, a citizen of the United States,residing at Chicago, in the county of Cook and State of lllinois, haveinvented certain new and useful Improvements in Conveyer Fittings, ofwhich the :following is a description.

My invention relates to improvements in conveyer fittings, and moreparticularly it relates to such a pipe fitting used in connection withconveyers for ash or other similar material. One of the objects of myinvention is to provide a fitting for such a conveyer in which theentering ash will impact or impinge on a flat surface provided in thefitting and thus eliminate grinding of the interior surface of thefitting by the ash impacting thereon. ,In the conveyer fittings, asheretofore constructed, the backing part of the fitting, that is, the.part receiving the impact of the entering ash or other material thereondue to its change of direction, is generally arcuate in crosssection sothat the ash impacting therewith will be spread or directed over saidarcuate surface in arcuate paths, while in my improved litting, the ashimpacts against a surface perpendicular or at an angle to the directionof travel of the ash and changes its direction of travel, with a minimumof scouring action on the back of the fitting, it being understood thatthe entering ash is conducted through. the pipe section byv a suction ora jet of steam, air, or the like. Another object of my invention is toprovide a sectional pipe fitting for a conveyer as above described inwhich the wearing part or wear back may be easily renewed withoutdisassembling or removing any other part of the fitting. Another objectof my invention is to provide an improved form of packing joint for afitting as above .described and improved means for drawing and securingthe parts together. Among other objects ofV my invention I have soughtto providey a device as above described which shall be economical,efficient, convenient, durable, and `satisfactory for use wherever foundapplicable. Many .other objects and advantages of the constructionherein shown and described will be obvious to those skilled in the artfrom the disclosure herein given. v Y

To this end my invention consists in the novel construction, arrangementand combination of parts herein shown and described, and moreparticularly pointed ,out in the claims. l Y

In the drawings, wherein like reference characters indicate like orcorresponding parts;

Figure l is a vertical elevation of my ash conveyer system as applied toa series of boiler furnaces, some of the parts being shown in section; y

Figure 2 is an end view of one of my improved conveyer fittings;

Figure 3 is a side elevation oit' the same;

Figure 4 is a sectional view takenisubstantially on Vthe line 4 4 ofFigure 3; with the wear or wear back part removed;

Figure 5 is a section taken substantially on the lline 5 5 of Figure 2;

Figure 6 is a section taken substantially on the line 6 6 of Figure 3;

Figure 7 `is an enlarged detailed View of my improved `torm of joint;and

Figure 8 is a sectional view of another form of my conveyer fitting. i

In the drawings, wherein I have illustrated a preferred embodiment of myinvention, l and 2 represent ash intake ttings having an intakecon'imunicating with a point adjacent to the ash pit of the boilerlfurnace and having their discharge'ends in communication with the boreof pipe sev, tions 3 of the conveyer section. The elbows 4 arc arrangedat the top and bottom of the riser' pipe of the conveyer system, orother desired points, the entire system emptying into the ash container5 or the equivalent, wherefrom the ashes may be discharged into anysuitable means for removing them. Connected to said elbows 4 are steamor air jets 7, said jets being fed by a main steam or air pipe 6.

Each of the elbow littings 4 comprises a body part 8 and a renewablewear back part 9 adapted to be removably secured thereto. l0 indicatesthe intake end of the chamber through the fitting, and 1l indicates thedischarge end thereof, there being ianges 12 and 13 at the intake anddischarge ends of the fitting whereby said fitting may be connected toadjacent pipe sections, as shown in Figure 2. Bolt holes 14 are providedin oneV or both of said end flanges through which tightening bolts maybe inserted to` secure the parts to the adjacent pipe fittings. Theparts 8 and 9 are preferably made of a special hard metal, the renewablewearback being of a harder material than that of the body part ifdesired. As it would be extremely dilficult to provide a pipe tap in ahard metal for the entrance of the steam jet nozzle, I have found ithighly desirable in many cases to provide a soft iron plug 15, which isset in place in the mold when the conveyer section is cast, sothat it issubstantially integrally secured thereto. This feature however is notessential. The nozzle 16 isthreaded into said soft iron plug, saidnozzle being adapted to be connected to the steam pipe 7.

As it is very'vital to the successful operation of the conveyerthat thelarge end of the steam jet nozzle is pointed inward, the threads at theinner and outer ends of the nozzle may be of different pitch, so thatthe nozzle may be placed in position on the fitting only in the correctmanner. I, therefore, generally provide different threads for thispurpose; Y

VThe wearback 9 has a flat inner surface 17 opposite the intake 10, saidsurface in the type of fitting shown lying substantially in a planeperpendicular to the direction of travel of the Vincoming ash, asindicated by the arrows in Figure 5, so that as the ash impinges orimpacts on the flat surface 17 it will rebound and change its directionof travel and be carried through the dis charge end 11 by the steamI jetcoming through the nozzle 16. Thus on account of the flat impact surfaceof the wear back the grinding or scouring action of the ash on thewearAback is reduced to a minimum. It willbe noticed that the flattened partof the wearback is also thickened in cross-section so that the longevityof said part is greatly increased, the remaining portion of said wearback gradually decreasing in crosssection to the discharge end.

The meetingedges 18-19 of the body part `and wear back partrespectively, are preferably flanged as at 20-21, and in each of theseedges is formed a series, of stepped portions or shoulders, a packingmaterial 22 being adapted to be inserted between saidV opposed edgeswhen the two parts are assembled. I have found a mixture of cement andVasbestos highly satisfactory for such a packing material. As shown inFigure 7, the edge 18 ofthe body part 8 has two shoulders'23and 2 4lying in planes parallel to and spaced apart transversely Aof thelitting,VA there being parallel walls 25, 26, and 27 spaced apart ,andforming the bounding ywalls of each ofsaidfsteps Vor shoulders 23 and24'.' The wear back 9 has formed in its edge'fl19, 'steps or shoulders28 and 29 parallel to keach other but of a different Obliquity than thesteps 23, 24, and lying in planes spaced lapart transversely of saidWear'back, said *planes being bounded by walls 30 and 31 correspondingto the walls 25 and 26 of the body member 8. When the parts areassembled the walls of the steps 23-28 and 24-29 respectively fornioutwardly converging pockets or grooves 32 and 53 respectively, saidpockets extending the entire perimeter of the meeting edges 18 and 19,whereby when said parts 8 and 9 are secured together in place thepacking is pressed tightly in said grooves and can not be blown out, norsucked out, as the outer ends of said pockets are smaller incrosssection than the inner ends.

.Near one end of the fitting, the flanges 18 and 19 have aligned lugsand 35 formcdthereon and projecting outwardly therefrom, said lugshaving apertures or bores 36 therethrough, the aligned axes of saidapertures being perpendicular to the plane of juncture of said parts 8and 9. Near the other end of the parts S and 9 l have Yprovidedoutwardly extending apertured lugs 37 and 38, one on each flange 18 and19frespectively, the aligned axes of said apertures extending obliquelyto the plane of juncture of the parts 8 and 9. Through the aligned lugs37 and 38 arr positioned attaching bolts or screws 4() and through theother aligned lugs are positioned attaching screws or bolts 41, wherebythe parts 8 and 9 may be tifrhtly secured together. ln practice, theliolts 41 are first tightened` upand then the bolts 40 arc tightened,`thus moving the parts S and 9 past one another in opposite directionsalong their line of juncture, and spreading the sealing or packingmaterial firmly into plafe and also tending to move the flange 13 of thepart 9 into close engagement with the adjacent lange of the adjacentpipe section.

lVhenever it is desired to inspect the .fitting which is not essential.it is not necessary in the construction illustrated that all the partsbe disconnected or disassembled, and whenever it is desired that anewwear back be put in place, the bolts 40 and 41 may be disconnected andthe old Wear back 9 removed and a new one applied to the art t5,whereupon the bolts 41 and flange bo ts are lirst partially tightened uand the subsequent tightening up of tie bolts 40 will lll!) move theflange 13 of the wear back into lar to the direction of the movement ofthe incoming ash, as indicated by the arrow in Figure S. The steam jetis secured to the body part at l and directed through the outlet end 46of the fitting, the inlet end of said fitting being designated as 47.The meeting flanges of the body part and Wear back are indicated as 48and 49 respectively, there being aligned lugs 5i) projecting outwardlytherefrom and secured together by bolts 5l or by any suitable orequivalent means. The fiat or straight inner face of the wear-back tendsto prevent Wear and swirling of the material, and it will be noticedthat the point of impact or stopping of the ash of the material issubstantially adjacent to the steam jet, thus eliminating wear above theelbow, which is of great importance. `While l have shown a plane degreesand 90 degrees, it Will be obvious that the construction herein setforth may be employed With a 221/2 plane elbow, or with otherstyles,'including booster fittings and the like. I have not consideredit necessary to illustrate all of these styles of fittings as it isbelieved that the embodiment herein set forth in various styles'offittings will be obvious to those skilled in the art.

Having thus described my invention it is obvious that various immaterialmodifications may be made in the same without departing from the spiritof my invention; hence l do not Wish to be understood as limiting myselfto the exact form, arrangement', construction and combination of partsherein shown and described, or uses mentioned.

That I claim as new and desire to secure by Letters Patent is:

l. A split conveyer of the kind described, comprising a body part and aWear back part, and means for securing said parts together at theirplane of juncture, said means comprising a pair of aligned aperturedlugs on the meeting edges of said parts, the axes of the apertures beingperpendicular to said plane ot juncture and a second pair of aperturcdaligned meeting lugs on the meeting edges of said parts and spaced fromsaid first named lugs, the axes of the apertures through said last namedlugs being oblique to the plane of juncture of the parts, and meansthrough each of said pair of registering lugs for securing said partstogether.

2. A split conveyer of the kind described, comprising a body part and aWear back part, and means for securing said parts together at theirplane of juncture, said means comprising a pair of aligned aperturedlugs on the meeting edges of said parts, the axes of the apertures beingperpendicular to said plane of juncture, and a second pair of aperturesaligned meeting lugs on the meeting edges of said parts and spaced fromsaid first named lugs, the axes of the apertures through said last namedlugs being oblique to the plane of juncture of the parts, and meansthrough each of said pair of registering lugs for securing said partstogether, and means for discharging a jet of impelling fluidsubstantially parallel With the face of the Wear back and into thepassing material.

3. A split conveyer fitting of the kind described comprising a body partand a Wear part, and means for securing said parts together at theirplane of uncture, said means comprising a pair of apertured aligned lugson each of said parts near one end thereof, the axes f said alignedapertures of the lugs being perpendicular to said plane of juncture, andanother pair of lugs on said members at their meeting edges near theopposite end thereof, the axes of the aligned apertures of said lastmentioned pair of lugs being oblique to said plane of juncture of theparts, and means adapted to be positioned through each pair ofregistering lugs to secure said parts together.

ln testimony whereof, I have hereunto signed my name in the presence oftwo subscribing Witnesses.

JoHN s. s. rULToN. llVitnesses Ro-Y W. HILL, RUTH M. EPHRAIM.

